Is it ok to copy a W5 head and make it better or are we just mad at Speedmaster

The Speedmaster heads aren't a bad piece. @pittsburghracer has done a few. Were they bare castings? The castings are good, the parts not bad as well as the machining. It sounds like they are pretty close to the Edelbrock's. If you are reproducing W2's all you want are castings anyway. Most racers building a W2 small block will want their own valves, springs and components anyway.